Figure 1.

Running time during the final exhaustion test for running (R) rats (A) and relative heart (B) and spleen (C) weights for all groups. REF, reference diet; CF, 5% cocoa fiber-enriched diet; C10, 10% cocoa-enriched diet. The control (C) groups are represented by smooth bars, and the R groups are represented by striped bars. Data are expressed as mean ± standard error of the mean (SEM) (n = 8). Statistical differences (a Kruskal–Wallis test followed by a Mann–Whitney U test): ^# p < 0.05 vs. the same exercise condition in the REF diet; ^λ p < 0.05 vs. the same exercise condition in the CF diet.